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International Conference on Recent Trends in Civil Engineering, Technology and Management
(ICRTCETM-2017)
ISSN: 2348 – 8549 www.internationaljournalssrg.org Page 1
EVALUATION OF MATERIAL WASTE
MANAGEMANT IN LARGE SCALE
CONSTRUCTION PROJECTS Raja Sekar.A [1] Sanjay Kumar.C [2] Kishor Kumar.G [3]
Department of Civil Engineering
Department of Civil Engineering. Assistant Professor
PSR Engineering College, Sivakasi
PSR Engineering College, Sivakasi
Department of Civil Engineering.
Tamil Nadu, India Tamil Nadu, India PSR Engineering College,
Sivakasi arsekar95@gmail.com Sanjay1951994@gmail.com Tamil Nadu, India
kishorkumar@psr.edu.in
ABSTRACT In recent treads a wide range of building materials is
available for the construction of civil engineering
structures. The total cost of materials may be up to
60% or more of the total cost incurred in
construction project dependent upon the type of
project. Effective construction materials
management is a key to success for a construction
project. Construction waste is another serious
problem in construction industry. A large and
various types of construction waste with different
characteristics are created at all the stages of
construction. Construction industries have a larger
part in contributing environmental problems. The
economic and environmental benefits must be
gained from construction waste minimization. This
paper presents a review on systematically
investigation of the management of construction
materials and construction waste, material
management techniques, control of construction
waste and existing situation of construction
management and construction waste in the industry.
KEYWORDS— RECYCLE AND REUSE OF
MATERIALS, MATERIAL WASTE MANAGEMENT,
CONSTRUCTION WASTE.
1.INTRODUCTION
The increasing amounts of construction waste cause
rapid depletion of landfill space available and bring
about an increasing demand for natural aggregates,
thereby inflicting ecological and environmental
damages on the earth. Thus, how to reduce the
generation of construction waste and how to ease the
impact of wastes generated on the ecosystem are
recognized as critical social issues on the global scale.
This research is focused on modelling waste-handling
processes in construction, with particular emphasis on
mapping and simulation of on-site waste sorting
processes
2. OBJECTIVES OF WASTE MANAGEMENT
The main objective of material waste management is to reduce the material waste in on-site and off-site.
• To reduce the generation of construction wastes.
• To minimize the cost incurred for material wastage.
• To create an economical project by effective minimization of the construction waste materials.
• Proper disposal of waste material
• To create an economical project by
minimizing the materials.
Management of Waste from Construction
Industry in India
In general, in India, contractor executes construction
project on a labour contract basis or on turnkey bas
is. Small housing projects are executed by owners and
are predominantly executed on labour contract basis
and strict supervision is required to control waste
generation during construction process. In this
construction process waste generation ranges between
5 to 7%.
Constituents of Waste that Arise from
Construction Industry in India Constituent Quantity generated in
Million Tonnes
Soil, Sand and Gravel 4.20 to 5.14
Bricks and Masonry 3.60 to 4.40
Concrete 2.40 to 3.67
Metals 0.60 to 0.73
Wood 0.25 to 0.30
Others 0.10 to 0.15
Soil, Sand and Gravel 4.20 to 5.14
International Conference on Recent Trends in Civil Engineering, Technology and Management
(ICRTCETM-2017)
ISSN: 2348 – 8549 www.internationaljournalssrg.org Page 2
3. SOURCES AND CAUSES OF
CONSTRUCTION WASTE
Procurement waste ➢ Ordering errors.
➢ Lack of possibilities to order small quantities.
➢ Purchased products that do not comply with specification.
Operational waste Errors by trade persons or laborers, accidents due to negligence, damage to work done caused by subsequent trades, use of incorrect material ➢ Required quantity uncleared due to improper planning
➢ Equipment malfunctioning.
➢ Inclement weather.
Material handling waste ➢ Damages during transportation & inappropriate
storage.➢ Materials supplied in loose form.
➢ Use of material which are closed to working
place.
➢ Unfriendly attitude of project team and laborers,
theft.
Design waste ➢ Lack of attention paid to dimensional co-ordination,
➢ Changes made to the design while construction is in progress.
4. Methodology
)
Design of questionnaire A questionnaire was designed to understand more
about the material management in the construction
industry. Data was collected from the responsible
persons from the site such as project manager, project
engineer or site engineer. Questionnaire mainly
focused on the following areas
• Company details. • Documentation details. • Details of material usage
• Details of material storage
• Methods for wastage reduction
5. Results and discussion
Collected data were analysed using statistical tools
analysis method, SPSS (Statistical package for the
social sciences) is a statistical analysis and data
management software package. SPSS can take data
from almost any type of file and use them to generate
tabulated reports, charts, and plots of distribution and
trends, descriptive statistics, and conduct complex
statistical analyses.
Some of the analysis results of the
questionnaire were shown below. FREQUENCY TABLE
Operational
Valid Valid Cumulative
Frequency Percent Percent Percent
1 12 21.1 21.1 21.1
2 16 28.1 28.1 49.1
3 17 29.8 29.8 78.9
4 10 17.5 17.5 96.5
5 2 3.5 3.5 100.0
Total 57 100.0 100.0
INFERENCE
The inference made from response of
construction employees and owners 21.1% are Very
low Severity rating of material waste management
projects are due to “Organization Chart”, 28.1 % of
the respondent says Low, 29.8 % of the respondent
says medium, 17.5% of the respondent says
High,3.5 % of the respondent says Very High.
International Conference on Recent Trends in Civil Engineering, Technology and Management
(ICRTCETM-2017)
ISSN: 2348 – 8549 www.internationaljournalssrg.org Page 3
Design and Documentation INFERENCE
The inference made from response of
construction employees and owners 24.6% are Very
low Severity rating of material waste management
projects are due to “Organization Chart”, 45.6 % of
the respondent says Low, 22.8 % of the respondent
says medium, 1.8 % of the respondent says high,
5.3% of the respondent says very high.
Materials storage and Handling
Valid Frequenc Percen Valid Cumulative
y t Percen Percent
t
1 3 5.3 5.3 5.3
2 24 42.1 42.1 47.4
3 15 26.3 26.3 73.7
4 8 14.0 14.0 87.7
5 7 12.3 12.3 100.0
Tota 57 100.0 100.0
l
INFERENCE
The inference made from response of
construction employees and owners 5.3% are Very
low Severity rating of material waste management
projects are due to “Organization Chart”, 42.1 % of
the respondent says Low, 26.6 % of the respondent
says medium, 14.0% of the respondent says High,
12.3 % of the respondent says Very High.
(
Procurement Valid Frequen Valid Cumulativ
cy Percent Percent e Percent
1 11 19.3 19.3 19.3
2 13 22.8 22.8 42.1
3 19 33.3 33.3 75.4
4 11 19.3 19.3 94.7
5 3 5.3 5.3 100.0
Tot 57 100.0 100.0
al
INFERENCE
The inference made from response of
construction employees and owners 19.3% are Very
low Severity rating of material waste management
projects are due to “Organization Chart”, 22.8 % of
the respondent says Low, 33.3 % of the respondent
says medium, 19.3 % of the respondent says High,
5.3 % of the respondent says Very High.
Vali
Frequen Percen Valid Cumulative
d
cy t Percent Percent
1
14 24.6 24.6 24.6
2 26 45.6 45.6 70.2
3 13 22.8 22.8 93.0
4 1 1.8 1.8 94.7
5 3 5.3 5.3 100.0
Total 57 100.0 100.0
International Conference on Recent Trends in Civil Engineering, Technology and Management
(ICRTCETM-2017)
ISSN: 2348 – 8549 www.internationaljournalssrg.org Page 4
Conclusion This study clearly indicates that, most of the materials
in construction sites get wasted because of the
erroneous waste management policy and failure in
records maintenance. Contractor’s poor involvement
and lack of knowledge in the material management
intensifies the problem further. The maximum amount
of sand, brick and steel gets wasted all because of its
storage condition. Whatever the project cost is high,
the storage for sand, brick and steel is open at the site
and due to impossible storage, these materials gets
more wasted. This increase in waste not only increase
the total cost of the project but also the span of the
project also gets delayed. Hence it is suggested to
provide a proper storage for all these materials at the
site and the handling should be done in a proper
manner. More careful is needed while placing and
transporting the materials. It we reduce these types of
waste; the project can be completed in an economical
and effective manner.
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